Doesn't pick `#` fields

scip-typescript doesn't seem to pick up fields that use the private `#` modifier

For example, [`#getServer`](https://sourcegraph.com/gitlab.com/gitlab-org/gitlab-vscode-extension@2f05c986f2ce767022578e613348469090207dcd/-/blob/src/completion/gitlab_code_completion_provider.ts?L45&subtree=true#tab=def) only has search-based refs.